Function nter_l

other_src/lua/src/lpeg.cpp:1148–1154

static int nter_l (lua_State *L) {
  Instruction *p;
  luaL_argcheck(L, !lua_isnoneornil(L, 1), 1, "non-nil value expected");
  p = newpatt(L, 1);
  setinst(p, IOpenCall, value2fenv(L, 1));
  return 1;
}